(Unknown)
Letter from an unknown writer, datelined Tombstone, Arizona, July 2, 1889, to George A. Treadwell, No. 40 Middleton Square, London, England

quarto, 4 pages, written on rectos only, on thin paper, few nicks to edges, else very good.

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An interesting, but incomplete, letter discussing mining operations in Mexico and touching upon some in Arizona:

   "Dear Sir,

    You will be somewhat surprised to receive a letter from your old friend of years ago. I am still located here in Tombstone and have been kept busy most of the time with surveys for the principal mining companies here. And have more or less work in Mexico. Went to Mexico last fall and surveyed a group of mines for E. A. Price, Supt. For Chamberlain of Cleveland, Ohio. The property known as the Creston Colorado they join the Minas prietas mines on the west, and from the development made I think they will prove as valuable as the Minas Prietas mines have proved to be. The Creston Colorado have a 30 stamp mill complete in every respect, and lit with Electric lights. The mill is so situated that the ore hoisted from the main shaft is delivered direct to the ore bins in the mill, thus saving all unnecessary handling. The water is pumped from the mine and gives an ample supply. The general character of the ore is the same as at the Vulture mine, the formation is different. The Hanging wall is Porphyry and foot wall of shales. The ore bodies lay in large Chimnies or chutes, dipping south and east. The vein has faulted two or three times but Mr. Price has by careful development solved this problem and placed the mine in good condition for working. The mill will be running in a short time and I hope very profitably.

   Since I left Vulture mine I have surveyed many silver and gold properties, many good ones, owing to the low price of Silver, many of the Silver mines are Idle. I have been thinking whether you could place a Good Gold property. It is situated in Mexico, only 12 miles from a Rail Road, and well situated for working having plenty of water near and an abundance of water. The ledge is very strong can be followed for more than three miles across the mountains. It is a contact vein the general direction is Easterly and Westerly, which is the direction of the best Gold producing properties upon the Pacific coast. The ledge stands nearly vertical with a slight dip to the south. The foot wall is slate and the hanging wall is porphyry. Another great advantage in the working of this property is that a Tunnel started near the Easterly end runs in along the vein say for 1000 ft would cut the vein at over 500 ft in depth at that point, and at 2000 ft the ledge would be cut at a thousand ft or more in depth.

   From this you can see that the ore can be easily mined, it being all stoped down. No expensive Hoisting machinery being necessary. Another point is the quantity of ore. There being three claims of 2640 ft. each which makes the property 1 ½ miles in length on the main ledge with another location of 1320 ft. on a spur which leads to the main vein. The location of these properties is such that the ore from the Tunnel can be run direct to the mill. The water for mill supply will for the present have to be pumped about six hundred yards distant, which can be easily done so fuel is very convenient, and of the best quality. The mountains have all kinds of wood and timber very handy, for mine and building timber. The beauty of this property is that the ledge is thoroughly mineralized and the ore would need no sorting but run the whole through the mill. In working the ore it would be necessary to put in concentrators, as there is some very rich Pyrites which runs very high in gold.

   There has been considerable of this ore worked at the different mills here viz on the River, which gave very good returns. I first visited this property in 1880, and made surveys of it then, have visited it several times since, and like the looks of it the more I see of it. Why it has not been opened up by American companies is because the Americans cant hold property in the "free zone". This property is owned by a rancher who has not the money to work the property as it should be worked, and he wants to sell his concession which covers the mines & springs with all the necessary wood and water. He wants $60,000 Dollars for the property. I think, yes I know that a 40 stamp mill in 6 months time will pay for the property and mill. This is a big statement but I know what I am talking about. In most mines the ore is what is needed, but here is the ore, and plenty of it. ..."